From owner-freebsd-questions@FreeBSD.ORG Wed Oct 5 18:25:12 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AD13B1065673 for ; Wed, 5 Oct 2011 18:25:12 +0000 (UTC) (envelope-from jusher71@yahoo.com) Received: from nm33-vm5.bullet.mail.ne1.yahoo.com (nm33-vm5.bullet.mail.ne1.yahoo.com [98.138.229.69]) by mx1.freebsd.org (Postfix) with SMTP id 5F2288FC13 for ; Wed, 5 Oct 2011 18:25:12 +0000 (UTC) Received: from [98.138.90.54] by nm33.bullet.mail.ne1.yahoo.com with NNFMP; 05 Oct 2011 18:25:11 -0000 Received: from [98.138.87.9] by tm7.bullet.mail.ne1.yahoo.com with NNFMP; 05 Oct 2011 18:25:11 -0000 Received: from [127.0.0.1] by omp1009.mail.ne1.yahoo.com with NNFMP; 05 Oct 2011 18:25:11 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 707186.53629.bm@omp1009.mail.ne1.yahoo.com Received: (qmail 92378 invoked by uid 60001); 5 Oct 2011 18:25:11 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1317839111; bh=4DeJ+yVdTbFiKY4Sx/V5Wk6AJMM/WuTAEFyplUq/xro=; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Subject:To:MIME-Version:Content-Type; b=aY9yy2zWYylzKQExVB069Q1fRZMm9GRzA1PtAEjuGJ510qKCwMudQV1SYawn2BCs7XpV0t14W4JOfvDJXb6X5gOBYKYPqfjrtN25cdC21ZPiMpsbwIL7jBACzolvk4btxnWu9gZ5mWlTL1BXyZGByW/aNqW5XksWc5jwqqt4Jw0= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Subject:To:MIME-Version:Content-Type; b=2DAuXKsPZlhYLRetZV3b7ldgnZUJkx72UqfqYcBpXDNXXHxauSnl8xjJnIm76yQo/PDpJZZeuXNel3H16YW9C9uojLePfuTj3Sc0vDzRd3mWPkUZVaaE5LOWLbBD/Vq6Uj0FQOH8xjweODfK5OZyMZt14Mc3X4WD7LN31XNcOg8=; X-YMail-OSG: 4oMy5pAVM1lU4.SzqIYnFFJ0FX4xXAY1eBgn3jXmpWKsQyv dYj2aM4_1N5Pxj7kKLr5SqmoQ8Ka7r1gOBnoPFa_QRk10txSAiIjO4sxdnDN tJB4AMvZ8fP3R_RvYpcoYk.UCkWrPiNWtH1tl_D09NYQFA1geHwLa.hSmdEm 3pSHSGpPrf_AJsxlTKQk_wlhkZgdNpVmnp6ui0JqdHsz7DvfW01wtiLgZz68 7eO3Zd8eYSCcf5yGVsDlh7K3Ewnrjl4NIiqZmF76SLHqk2dtBAslbt7IccBa OTACqR9KnnyPRGzIP0SbU3RPHRtBklF14odPDg54g.Bd2nx0sMkeZewMjhPw 01kVNNoPltV5vVctgJZ8TkPK7ETF3o8HZZAN1k1Sw Received: from [137.56.163.64] by web121214.mail.ne1.yahoo.com via HTTP; Wed, 05 Oct 2011 11:25:11 PDT X-Mailer: YahooMailClassic/14.0.7 YahooMailWebService/0.8.114.317681 Message-ID: <1317839111.86728.YahooMailClassic@web121214.mail.ne1.yahoo.com> Date: Wed, 5 Oct 2011 11:25:11 -0700 (PDT) From: Jason Usher To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailman-Approved-At: Wed, 05 Oct 2011 18:30:28 +0000 Subject: Parallel fscks on large filesystems ... wondering about maxdsiz setting... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Oct 2011 18:25:12 -0000 Old 6.4-RELEASE system. Two filesystems exist, each of which is on its own raid controller. (Background fsck is not workable for various reasons that are tl;dr.) So, theoretically, doing both fscks at the same time is workable, since each of them are on their own controller, and no disk/controller resources are shared. HOWEVER, due to the large size and dense inode usage, we are forced to set: kern.maxdsiz="4096000000" And my question is: If I run two fscks at the same time, do I need to up this to 8192000000, or is this a per-process limit and I can run several processes that big, while leaving the value at 4096000000 ? (16 GB of ram, so either way we're well below) Thanks!